* feat: add Phrozen Arco machine profiles and bed plate assets
- Upload JSON profiles for the Phrozen Arco printer series
- Include 3D bed plate model and corresponding texture files
- Enables accurate slicing configuration and scene rendering for Arco
* fix: add missing "instantiation" attribute
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Co-authored-by: SoftFever <softfeverever@gmail.com>
Co-authored-by: Noisyfox <timemanager.rick@gmail.com>